Always power up the AVR Dragon first before connecting to or powering up the target
AVR Dragon needs to sense the target voltage at pin 2 on the ISP header or pin 4 on the JTAG header.
This also applies when using High Voltage interface.
The High Voltage interface are set to 5V. Make sure the target board are running at 5V before using this interface off board.
VCC header are set to 5V, and can source max 300mA.
If AVR Dragon is used for programming/debugging targets on the STK500, the RESET jumper on the STK500 must be removed